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Non Cancelable Operating Lease Commitments (Detail)
$ in Thousands
Dec. 31, 2015
USD ($)
Commitments and Contingencies Disclosure [Line Items]  
2016 $ 15,665
2017 11,778
2018 9,559
2019 8,487
2020 7,222
Beyond 2021 16,009
Total $ 68,720